Our stem mount for GPS bike computers ELEMNT Wahoo is made of lightweight and durable plastic. Perfect solution for cyclists who prefer to keep their computer on top of the stem. Fits any stem Weight: 5.6 g Works withELEMNT,ELEMNT BOLT andELEMNT MINI (Note: BOLT loses its aerodynamic advantage with this mounting system). Includes four (4) self-locking clamps for attachment